If the doll´s joints are kept bent for a long time, creases and wrinkles will appear on its surface which is due to the improper posture it is placed in and prolonged pressure on the surface. For example, if it is placed sitting in the chair for a long time, there will be horizontal grains on its abdomen. Silicone has resilience itself, so when the doll model is not used, keep it in the posture just like when it came out of the factory, reduce the force on all joints and lay it aside for a certain period of time, the creases and wrinkles will decrease and disappear. Sexdolls